2
gehenna(noun, difficulty, misery, trial, grave)
2
grief(noun, trouble, blow, distress, care)
2
hard time(noun, expression, trouble, blow, distress)
2
hell upon earth(expression, idiom)
2
holocaust
2
horrific
2
horrifying
2
imagining(noun, desire, fancy, hope, image)
2
mirage(noun, desire, fancy, spirit, hope)
2
nightmares
2
ogress
2
pavor(noun, awful, terrible, fear, terror)
2
pipe dream(noun, expression, concept, understanding, desire)
2
purgatory(noun, difficulty, misery, trial, grave)
2
revenant(noun, spirit, ghost, apparition)
2
reverie(noun, desire, fancy, idea, impression)
2
scare(noun, distress, anxiety, awful, terrible)
2
scarecrow
2
spirit(noun, dream, revelation, ghost, prophecy)
2
struggle(noun, trouble, test, suffering, grind)
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APASmart Define. (2016). nightmare thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/nightmare/thesaurus/synonyms
ChicagoSmart Define. 2016. "nightmare thesaurus" https://smartdefine.org/nightmare/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, nightmare thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/nightmare/thesaurus/synonyms>.
MLASmart Define. "nightmare thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/nightmare/thesaurus/synonyms>